Disney•Pixar has released the new trailer for Monsters University, opening in 3D and 2D theaters on June 21. Directed by Dan Scanlon, the animated comedy features the voices of Billy Crystal, John Goodman, Steve Buscemi, Dave Foley, Julia Sweeney, Joel Murray and Peter Sohn. Mike Wazowski and James P. Sullivan are an inseparable pair, but that wasn’t always the case. From the moment these two mismatched monsters met they couldn’t stand each other. Monsters University unlocks the door to how Mike and Sulley overcame their differences and became the best of friends.